Water Separator Fuel Filter P551329 J930942 Fit for Case 570LXT 521D 621 721B
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Compatible Models
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Water Separator Fuel Filter for Case
This Water Separator Fuel Filter P551329 J930942 replaces OEM cross-reference numbers P551329 and J930942, serving as a critical filtration component for select Case machinery. It removes water and contaminants from diesel fuel to protect the engine from damage and ensure reliable operation. This Water Separator Fuel Filter for Case is designed for use in loaders, backhoes, and excavators where clean fuel is essential.
Overview
This Water Separator Fuel Filter P551329 J930942 for Case combines water separation and particulate filtration in a single service part, safeguarding the fuel system from rust, debris, and moisture. It is a direct replacement for the original filter, designed to meet or exceed OEM specifications for flow rate and filtration efficiency. It is intended for diesel engines in construction and agricultural equipment, helping maintain performance and extend engine life.
Built For Performance
- High-efficiency filtration media removes water and contaminants down to critical micron levels
- Robust metal housing withstands high pressure and demanding operating conditions
- Threaded mounting interface ensures a secure, leak-free seal
- Compatible with standard diesel fuel systems, including those with water-in-fuel sensors
- Direct replacement for P551329 and J930942, ensuring proper fit and function
Fits These Machines
- for Case 570LXT
- for Case 521D
- for Case 621
- for Case 721B
On-The-Job Use
- Routine maintenance for construction loaders and backhoes in dusty or wet environments
- Fuel system service for agricultural tractors and material handlers
- Preventive replacement during scheduled engine tune-ups to avoid fuel injector failure
Specs At A Glance
| Part Number(s) | P551329, J930942 |
| Type | Water Separator Fuel Filter |
| Compatible Brands | Case |
Good To Know
Q: How often should this water separator fuel filter be replaced? A: Replacement intervals typically align with the manufacturer's service schedule, often every 250 to 500 operating hours or as specified in the machine's manual. Regular replacement prevents water accumulation and fuel system damage.
Q: Can this filter be used with biodiesel blends? A: This filter is suitable for standard diesel fuels and most biodiesel blends up to B20, provided the fuel meets industry specifications. Always confirm compatibility with your specific fuel type and operating conditions.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.